According to the related sino-american tea trade data from 1991 to 2010, influencing factors of export from China to the US was intended to analyze. Through the regression model of empirical analysis, it was found that the main obstacle was the technical barrier. What's more, the average price of Chinese tea and the total output also had a significant impact on the tea trade between two countries. In the part of discussion, this article proposed the policy suggestions that the government should improve the standardization system of Chinese tea management, and enterprises should improve technology innovation ability, standardization consciousness, and industry association should improve self-service work.